Principal Software Engineer

Core Responsibilities:

• Design, develop, and maintain backend services and APIs using Python or Golang.
• Write high-quality, testable, and maintainable code with a focus on performance and scalability.
• Implement automated tests and contribute to CI/CD pipelines.
• Collaborate with product, QA, and DevOps teams for end-to-end feature delivery.
• Troubleshoot production issues and provide timely resolutions.
• Participate in design and architecture discussions to improve system efficiency.
• Contribute to improving development processes, coding standards, and best practices.

Experience and Expertise:

• 2–4 years of experience in backend development with Python or Golang.
• Solid understanding of RESTful APIs, microservices, and distributed systems.
• Strong knowledge of data structures, algorithms, and OOPS principles.
• Hands-on experience with relational and/or NoSQL databases.
• Familiarity with Linux development, Docker, and basic cloud concepts (AWS/GCP/Azure).
• Proficiency with Git and version control workflows.
• Familiarity with AI-powered development tools or exposure to projects involving large language models (LLMs) is a plus.

Skills:

• Strong analytical and debugging skills with the ability to solve complex problems.
• Good communication and collaboration skills across teams.
• Ability to work independently with minimal supervision while being a strong team player.
• Growth mindset – eagerness to learn new technologies and improve continuously.

Wissen Technology is now hiring for a Java Developer - Bangalore with hands-on experience in Core Java, algorithms, data structures, multithreading and SQL. We are solving complex technical problems in the industry and need talented software engineers to join our mission and be a part of a global software development team. A brilliant opportunity to become a part of a highly motivated and expert team which has made a mark as a high-end technical consulting. 

Experience: 4-8 years

Required Skills:

• Experience in Core Java and Spring Boot.
• Extensive experience in developing enterprise-scale applications and systems. Should possess good architectural knowledge and be aware of enterprise application design patterns.
• Should have the ability to analyze, design, develop and test complex, low-latency client- facing applications.
• Good development experience with RDBMS.
• Good knowledge of multi-threading and high-performance server-side development.
• Basic working knowledge of Unix/Linux.
• Excellent problem solving and coding skills.
• Strong interpersonal, communication and analytical skills.
• Should have the ability to express their design ideas and thoughts.

Backend Engineering Intern (Infrastructure Software) – Remote

Position Type: Internship (Full-Time or Part-Time)

Location: Remote

Duration: 12 weeks

Compensation: Unpaid (***3000 INR is just a placeholder***)

About the Role

We are seeking a motivated Backend Developer Intern to join our engineering team and contribute to building scalable, efficient, and secure backend services. This internship offers hands-on experience in API development, database management, and backend architecture, with guidance from experienced developers. You will work closely with cross-functional teams to deliver features that power our applications and improve user experience.

Responsibilities

• Assist in designing, developing, and maintaining backend services, APIs, and integrations.
• Collaborate with frontend engineers to support application functionality and data flow.
• Write clean, efficient, and well-documented code.
• Support database design, optimization, and query performance improvements.
• Participate in code reviews, debugging, and troubleshooting production issues.
• Assist with unit testing, integration testing, and ensuring system reliability.
• Work with cloud-based environments (e.g., AWS, Azure, GCP) to deploy and manage backend systems.

Requirements

• Currently pursuing or recently completed a degree in Computer Science, Software Engineering, or related field.
• Familiarity with one or more backend languages/frameworks (e.g., Node.js, Python/Django, Java/Spring Boot, Ruby on Rails).
• Understanding of RESTful APIs and/or GraphQL.
• Basic knowledge of relational and/or NoSQL databases (e.g., MySQL, PostgreSQL, MongoDB).
• Familiarity with version control (Git/GitHub).
• Strong problem-solving skills and attention to detail.
• Ability to work independently in a remote, collaborative environment.

Preferred Skills (Nice to Have)

• Experience with cloud services (AWS Lambda, S3, EC2, etc.).
• Familiarity with containerization (Docker) and CI/CD pipelines.
• Basic understanding of authentication and authorization (OAuth, JWT).
• Interest in backend performance optimization and scalability.

What You’ll Gain

• Hands-on experience building backend systems for real-world applications.
• Exposure to industry-standard tools, workflows, and coding practices.
• Mentorship from experienced backend engineers.
• Opportunity to contribute to live projects impacting end users.

Job Summary

We are looking for a Senior Backend Engineer with strong experience in Java, Spring Boot, and Microservices architecture. Candidates with server-side Kotlin development experience are highly preferred. Strong software engineering fundamentals, REST API development expertise, and experience building enterprise-scale applications are essential.

The ideal candidate should be passionate about clean code, testing, scalability, and product/platform engineering.

Key Responsibilities

• Design, develop, and maintain scalable backend applications using Java and/or Kotlin.
• Build and enhance RESTful APIs and microservices-based applications.
• Develop high-performance, secure, and reliable enterprise applications.
• Participate in system design, architecture discussions, and technical decision-making.
• Write clean, maintainable, and well-tested code following industry best practices.
• Implement and maintain automated unit tests, integration tests, and other testing strategies.
• Collaborate with Product, Engineering, and DevOps teams to deliver high-quality solutions.
• Troubleshoot production issues and optimize application performance.
• Mentor junior developers and contribute to engineering excellence initiatives.

Required Skills

• 6–8+ years of backend development experience.
• Strong proficiency in Java.
• Experience with server-side Kotlin (preferred) or willingness to learn and work extensively in Kotlin.
• Hands-on experience with Spring Boot and Microservices architecture.
• Strong experience developing REST APIs.
• Experience building enterprise-grade applications.
• Good understanding of software design patterns and object-oriented programming principles.
• Strong knowledge of unit testing frameworks such as JUnit, Mockito, or equivalent.
• Experience with Test-Driven Development (TDD) is highly desirable.
• Knowledge of CI/CD pipelines and version control systems such as Git.
• Experience working with relational and/or NoSQL databases.

About Us:

We’re a startup based in Hyderabad. We focus on making speech, text & structured data actionable. We are building an exciting range of products, and have paying customers.

Job Description

We are seeking an experienced Java Developer to join our dynamic team. The ideal candidate

will have 5 to 8 years of hands-on experience in Java development, with a strong understanding

of software  development principles and methodologies. The Java Developer will be

responsible for designing, developing, and maintaining high-quality software solutions that

meet our clients' needs.

  Responsibilities:

·      Designing, developing, and maintaining high-performance and scalable Java applications.

·      Collaborating with cross-functional teams to define, design, and ship new features.

·      Writing clean, maintainable, and efficient code following best practices.

·      Participating in code reviews and providing constructive feedback to peers.

·      Troubleshooting, debugging, and resolving technical issues in a timely manner.

·      Ensuring the performance, security, and scalability of applications.

·      Staying updated with the latest industry trends, technologies, and best practices.

·      Mentoring junior developers and assisting in their professional growth.

·      Develop Spring based server-side components of Enterprise applications.

·      Build self-dependent modules which can integrate with external applications.

·      Develop and manage well-functioning databases and applications

·      Test software to ensure responsiveness and efficiency

What we will bring to the table:

·      Focused opportunity to work on cutting edge technologies

·      Exposure to key customers in India and abroad

·      Work closely with senior leadership that has already developed world class products

·      A learning environment

·      Challenging problems to solve

About Team:

CaratLane's mission is to help customers express their emotions through jewellery. Consumer Experience Technology team is an enabler to deliver the exceptional Consumer Experience and WoW business features in large scale website, apps and backend systems.

What do we want:

* 5 to 8 years of experience in Java and Spring Boot working with large scale backend applications

* Expertise in PostgreSQL and any of caching databases

* Experience in developing RESTful/GraphQL APIs and microservices based applications

* Good problem solving and debugging skills.

* Exposure on event-driven, asynchronous I/O

* Good knowledge of engineering excellence: Unit Testing/TDD, Code quality, Documentation, CI&CD

* Experience in non-functional requirements (Scalability, Performance optimisation, Security)

* Experience is Linux development and AWS ecosystem tools

Role:  Java Plugin Developer

• Sound knowledge and hands-on experience in building a software application using Java 
• Proficient in Core Java (OOPs, Design Patterns, Stream API, Multithreading, Generics).
• Good understanding of OSGi,Eclipse RCP and Plugin development

• Mandatory skills: Spring boot, Hibernate, Microservice
• Strong Java skills including Java 8 features 
• Good understanding of Microservices-based architecture and the related ecosystem 
• Exposure to MS SQL Server, Sybase etc. and NoSQL databases like MongoDB is also preferred.
• Great OO skills, including strong design patterns knowledge 
• Strong knowledge of software best practices, like Test-Driven Development (TDD) and
• Continuous Integration (CI) 
• Strong Knowledge of Data Structures & Algorithms
• Experience in working with data-driven RESTful APIs using web frameworks like SpringBoot,etc. 
• Should be able to do data modeling
• Good understanding of ORMs like Hibernate, JPA, etc. 
• Strong debugging skills
• Familiarity with architectural/ design patterns
• Advanced knowledge of Agile methodology.